I followed the instructions to update the Dual Battery Charger (I have two). The lights never flashed green or turned green, but the chargers DID update, and can now function as a "giant power bank" to charge "other devices." And the power DOES pass through whilst charging.
I've tested both the "Case Landing" and the "Increased Range with Beacon" and they both function FLAWLESSLY. Got a great video yesterday whilst bicycling. Flew three batteries. What a pleasure!
de KØUNX, Jim, in Jefferson County, Colorado